Canon EOS R5 C Advanced User Guide VIDEO edition - Page 79

Aperture Using the Control Dial/Control Ring You can also adjust the aperture settings using the control dial (after assigning the [Iris] function) or the control ring of an RF lens/mount adapter. 1 Select > [B System Setup] > [Grip Control Dial], [Top Control Dial] or [Control Ring] > [Iris]. 2 Turn the control dial or the control ring of an RF lens to adjust the aperture. • The selected aperture value will appear at the bottom of the screen. Control dial 79 NOTES • You can use the > [B System Setup] > [Grip Ctrl Dial Dir.], [Top Ctrl Dial Dir.] or [Control Ring Dir.] setting to change the direction of the adjustment when you turn the control dial or control ring. • If you set an assignable button to [Iris +] or [Iris -] (A 121), you can press the button to respectively open up or close down the aperture. • When using a lens with no lens contacts or an incompatible lens (A 234), you cannot adjust the aperture using the camera. Adjust it using the lens. • When using a lens that can correct the aperture value according to the position of the zoom, you can use the > [v Camera Setup] > [Zoom-Iris Correction] setting to activate this correction. • Using an EF Cinema lens - The aperture value displayed on the screen will be a T value. The aperture value (T value) displayed on the screen may differ from the indication on the lens's aperture scale. - When the iris is almost fully closed, the aperture value (T value) will appear in gray on the screen. - When you change the aperture value from a position of fully open or fully closed iris, multiple adjustment operations may be required until the aperture changes. • If you use the EF-EOS R 0.71x Mount Adapter to attach an EF lens, the aperture will be approximately one level brighter than the value indicated by the lens.